Image Processing ACEUser's Guide, 3.6.x, 18316-000 Rev A Page 507 Object Definition Filtering Horizontal Prewitt Applies a Horizontal Prewitt filter Filtering Vertical Prewitt Applies a Vertical Prewitt filter Filtering Gaussian Applies Gaussian filter Filtering HighPass Applies High Pass filter Filtering Median Applies a Median filter Morphological Properties Morphological Dilate Sets each pixel in the output image as the largest luminance value of all the input image pixels in the neighborhood defined by the selected kernel size.
Morphological Erode Sets each pixel in the output image as the smal- lest luminance value of all the input image pixels in the neighborhood defined by the selected ker- nel size. Morphological Close Has the effect of removing small dark particles and holes within objects Morphological Open Has the effect of removing peaks from an image, leaving only the image background Histogram Properties Histogram Equalization Equalization operation enhances the Input Image by flattening the histogram of the Input Image Histogram Stretching Stretches (increases) the contrast in an image by applying a simple piecewise linear intensity trans- formation based on the histogram of the Input Image.
Histogram Light Threshold Changes each pixel value depending on whether they are less or greater than the specified threshold. If an input pixel value is less than the threshold, the corresponding output pixel is set to the minimum acceptable value. Otherwise, it is set to the maximum presentable value.